Stereo Enhancement
Widening and deepening a master through careful mid-side work while keeping mono compatibility and a solid centre.
Related
Width comes first from arrangement and space, not from a knob. Mastering can tidy existing space; it cannot invent depth.
The problem
A mix that sounds wide on speakers can turn thin in mono, with drums and vocal losing body. Push the side hard and the low end spreads, the centre empties.
Goals and standards
After enhancement, the vocal, kick and bass still feel solid, while left and right information is clearer. In mono, key elements should not lose level or change tone. A common approach raises the side by only 1 to 2 dB and keeps lows centred.
Practice
Check mono first, then decide whether widening is needed. Use a mid-side tool to lift the side gently, or add a high shelf to the side only. Recheck phase and low end, and keep bass centred. Haas delays over about thirty milliseconds become audible echoes.
What to listen for
Hear whether the centre vocal still stands, whether drum low end stays focused, and whether side detail becomes clearer.
Common misunderstandings
Wider is not better; excess width removes the centre's support. A widening plugin cannot rescue a narrow arrangement. Clumsy mid-side settings also break mono compatibility.
Listen in the library
All tracks from midicn-lib — inline badge is the license tier (C1 commercial / C2 non-commercial / C3 study only).
Sources
- mid-side 处理与单声道兼容的判断，依立体声与母带通识核查，未抄文本
- 低频保持中置、侧向信号谨慎提升的做法，依母带工程通识核查，未抄文本
Used for fact-checking only; all prose is original.